System of targeting data service for web-based media contents

PURPOSE: A preference information management system for web-based multimedia content is provided to automatically extracts user history information and user preference according to the individual content based on one basic targeting service algorithm. CONSTITUTION: A multi-contents metadata module(100) stores metadata about plural contents genres. A user preference update module(110) collects the usage pattern of a user. The user preference update module classifies preference patterns or non-preference patterns. The user preference update module updates user preference information based on preference patterns or non-preference patterns.